Zur Langzeitökologie des Lärchen-Arvengürtels in den südlichen Walliser Alpen

Boltshauser-Kaltenrieder, Petra; Tinner, Willy; Ammann, Brigitta (2005). Zur Langzeitökologie des Lärchen-Arvengürtels in den südlichen Walliser Alpen. Botanica Helvetica, 115(2), pp. 137-154. Birkhäuser-Verlag; www.birkhauser.ch 10.1007/s00035-005-0722-y

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Palaeoecological studies in the "Alpe d'Essertse" area have provided much information about Vegetation changes and timberline fluctuations during the Holocene In this study we repeated previous biostratigraphic investigations using plant macrofossils to improve their temporal and taxonomie resolution and to test their reliability. By analyzing 0.5-cm layers of a lake sediment we reached a temporal resolution of 44 years, and we were able to reconstruct Vegetation changes in the surrounding area at species level. The sedimentary record analyzed extends from the Late-Glacial to the late Holocene Alpine grasslands (12'000-11'000 cal. BP) were afforested by Larix decidua, Juniperus nana, and Pinus cembra (11'000-9'600 cal. B.P). Stable subalpine larch-stone pine-forests (9'600^4'900 cal. BP) were followed by shrublands and meadows as a consequence of the climatically and anthropogenically induced destruction of forest Vegetation (4'900-2'600 cal. BP). Changes in the abundance of P. cembra and L. decidua needles as well as changes of the other taxa were consistent with those found in previous studies from the same lake. Our results demonstrate that plant-macrofossil records can be reproduced spatially and temporally on separate cores with independent 14C chronologies.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Palaeoecology
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)

UniBE Contributor:

Boltshauser-Kaltenrieder, Petra; Tinner, Willy and Ammann, Brigitta

Subjects:

500 Science > 580 Plants (Botany)

ISSN:

0253-1453

Publisher:

Birkhäuser-Verlag; www.birkhauser.ch

Language:

German

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

26 Nov 2015 07:42

Last Modified:

26 Jun 2018 13:06

Publisher DOI:

10.1007/s00035-005-0722-y

Uncontrolled Keywords:

Plant macrofossils, timberline, Vegetation history, palaeoecology, climate change, human impact

BORIS DOI:

10.7892/boris.73229

URI:

https://boris.unibe.ch/id/eprint/73229

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